So I bought the largest drive version of the PS3 about 7-8 months ago...and recently the HDD locked up, and would no longer work. Instead of sending it in for repairs, I simply went to Circuit City and bought a 200GB HDD SATA...blah, blah blah, and installed and formatted it....up and running with HUGE amounts of storage space in less that 10 minutes.

Easy to do, and highly recommended upgrade!